Tobacco pipe



NOV. 25, v1947. lc; J, Q RYDHOLM' 2,431,586 TOBACCO PIPE A Filed Nov.l0, 1945 Patented Nov. 25, 1947 UNITED STATES-PATENT OFFICE TOBACCO PIPECarl Johan Olof Rydholm, Goteborg, Sweden Application November 10,1943,-Serial No. 509,783 In Sweden November 19, 1942 This inventionrelates to tobacco pipes and more particularly to that type of tobaccopipe having two separate smoke bores leading from the pipe bowl to themouth-piece bore.

One object of my invention is to provide a tobacco pipe of the typereferred to which avoids a sloping or uneven burning of the tobacco inthe pipe bowl.

A further object is to provide a construction for preventing theundermost tobacco layer in the pipe bowl from becoming damp as a resultof smoke from the upper layer passing therethrough.

A still further object is to provide a pipe which is readily cleanable.

These and further objects I attain by the construction described withreference to the accompanying drawing, in which- Figs. 1 and 2 arelongitudinal sections of the pipe with the mouth-piece in two diierentpositions having an angular difference of 180.

Fig. 3 shows a section of the insertion proper.

The pipe bowl consists of an outer part or cover 2 connected with thepipe bowl stem I, and an insertion 3. The insertion is provided withthreads 4 and is screwed into the pipe bowl and can readily be removedfor cleaning. The insertion 3 abuts against the outer part 2 at the top,i. e., at the threads 4 and at its bottom, and around the interjacentpart there is a recess forming an annular chamber 5. At a suitableheight of the insertion wall, there are two openings 6 leading to theannular chamber 5. This chamber communicates with a smoke bore I leadingto a bore 8 located at the end of the pipe bowl stem I and adapted toreceive the journal I of the mouth-piece 9. A smoke bore II separatedfrom the smoke bore I connects an opening I2 in the bottom of theinsertion with the bore 8. The mouth-piece 9 is as usual provided with acentral bore I3. As there is cut off a portion of the end of the journalI I) to about half of the diameter thereof, there is formed a recess I4,which constitutes a communication between the bores 'l and I3, in theposition shown in Fig. 1, and between the bores II and I3, in theposition shown in Fig. 2. The remaining outer end face 0f the journalwill, in these positions, close the bores I I and 1, respectively,

The pipe bowl being lled, the mouth piece at rst will be adjusted in theposition shown in Fig. 1, and during the smoking of the tobacco layerlocated above the openings 6, the smoke is sucked through the openings6, the chamber and the smoke bore 1. As the openings 6 are evenlydistributed around the insertion, the to- 3 Claims. (Cl. 131-216) baccolayer will burn down to these openings evenly and not slopingly, as isthe case in tobacco pipes having one opening on one side only of theinner wall of the pipe bowl. If desired, more than vtwo openings may bedisposed peripherally around the wall of the insertion 3. After theYtobacco layer located above the openings .5 has been smoked up themouth-piece 9 is turnedy half a revolution and the underlying tobaccolayer can now be smoked, the smoke then passing through the opening I2and the bore II. The taste of the underlying tobacco layer has not beendeteriorated by the foregoing smoking, but has the same good taste as ina, fresh-filled pipe.

In order to clean the tobacco pipe, the insertion 3 is unscrewed and thebores 'I and II then can be readily cleaned by means of ordinary pipecleaners. For this purpose, it is of great advantage that both of thesebores are parallel to the bore 8.

The embodiment described above and shown in the drawing is to beconsidered as an example only and may, of course, be modied as to itsdetails.

What I claim is:

1. A tobacco pipe, comprising in combination a pipe bowl, an insertionprovided with a lling top opening and secured in said pipe bowl, saidinsertion being hermetically sealed to the bowl adjacent the upper edgethereof and also adjacent the lower end thereof and having itsintermediate portion spaced from the bowl to form an annular chamber, atleast two smoke openings disposed adjacent to the upper edge and on thesame level in the wall of Said insertion and communicating with saidannular chamber, said openings being evenly distributed around saidinsertion, a bottom smoke opening in said insertion, a mouthpiece havinga channel, means for joining said pipe bowl and said mouth-piece, a rstbore communicating with said annular chamber, a second borecommunicating with said bottom smoke opening, and means foralternatively putting said mouth-piece channel into communication witheither of said bores whereby the mouth piece channel communicates withthe first bore While being shut off from communication with the secondbore and vice versa.

2. A tobacco pipe, comprising in combination a pipe bowl, an insertionprovided with a lling top opening and secured in said pipe bowl, saidinsertion being hermetically sealed to the bowl adjacent the upper edgethereof and also adjacent the lower end thereof and having itsintermediate portion spaced from the bowl to form an annular chamber, atleast two smoke openings disposed adjacent to the upper edge and on thesame level in the wall of said insertion and communicating with saidannular chamber, said openings being evenly distributed around saidinsertion, a bottom smoke opening in said insertion, a mouth-piecehaving a channel, a stem part projecting from and secured to said pipebowl, a i'lrst borelocated atfthe fend-ofsaid stem part and adapted toreceive-oneend ofsaid mouth-piece, a second bore connecting said annularchamber with said rst bore, a third bore connecting said bottom smokeopening with .aid rst bore, a rotatable valve device secured to-said endof said mouth-piece and adapted togalternatively put said channel intocommunication with either of said second and third'bores-whereby saidmouth piece channel communicates with said annular channel While beingshut loff from said bottom smoke opening and vice Versa.

L3.1A rtobacco pipe bowl comprising `an outer cover, an insertionprovidedpwith a :filling ,top opening-,andsecured in said outercover,said:in ,s erton being hermetically sealed `to vthe cover adjacentthe upper edge thereof and also adjacent the `lower end thereofandhaving its intermediate portion spaced Vvfrom vsaid v.cover ,to ,formvan annular chambenat `leasttwo smoke openings disposed adjacent totheupper edgeanjd ,on ,thersame llevel in thewallA of. said ,insertionandcommunicating with said annular chamber, said openings being evenlydistributed around said insertion, a bottom smoke opening in saidinsertion, a stem part projecting from and secured to said outer coverand adapted to receive a mouth-piece, a rst bore in said stem partcommunicating with said annular chamber, a second bore in said sternpart communicating with "Said-bottomsmoke opening -and a bore in saidvmouthpiece adapted tofcommunicate'alternately with said fnst and secondbores whereby said mouth-piece bore may communicate with the annularchannel while being shut off from said *bottom smoke opening and Viceversa.

CARL OHAN OLOF1 RYDHOLM.

REFERENCES CITED The following references are of record in the lefo'f.this patent:

lUNITED STATES PATENTS Number Name jDate 2,293,221 Rubens Aug. 18, 19421,199,445 Weiss Sept. 26, 1916 FOREIGN PATENTS Number Country Date694,276 Germany July 29, 1940 29,494 `Germany ,.Nov. 141884

